> For the complete documentation index, see [llms.txt](https://docs.acho.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.acho.io/acho-studio/data-prep-projects/applying-actions/view/hide-columns.md).

# Hide Columns

The **`Hide Columns`** action is particularly useful when you have a large table with many columns, but you only need to use a few. Columns that are hidden are no longer considered for transformation, but they are not deleted, you can either unhide them or reset the action to make them visible again.

![](/files/-McFMoP-2PqTQciqwwoz)